Bobbin support



Sept. 29, 1925.

W. H. BAHAN, JR

BOBBIN SUPPORT Filed May 10, 1924 2 Sheets-Sheet 1 Zlvwentoa Sapt. .29, 1925. 1,555,348

N. H. BAHAN, JH

BOBBIN SUPPORT Filed May 10, i924 2 Sheets-Sheet 2 (34 qtiiommw Patented Sept. 29, 1925.

UNITED STATES WILLIAM H. IBAI-IAN, J 3., OF GREENVILLE, SOUTH CAROLINA.

BOBBIN SUPPORT.

Application filed May 10, 1924. Serial No. 712,287.

To all whom it may concern:

Be it known that I, WVILLIAM H. BAHAN, Jr., a citizen of the United States, residing at Greenville, in the county of Greenville and State of South Carolina, have invented certain new and useful Improvements in Bobbin Supports, of which the following is a specification.

This invention relates to filling-changing motions for looms and more particularly to a novel and improved bobbin support for employment in connection with the filling changing motion such as is employed in the well-known Northorp loom, one of the primary objects of the invention being to provide means for supporting a bobbin which is in position to be discharged from the hopper of the motion into the shuttle and to provide for such delivery without likelihood of injury to the box or shuttle or without imposing any undue wear upon the bobbin.

Another object of the invention is to provide means for yieldably supporting the heel or butt of a bobbin while the bobbin is yet within the hopper of the filling changing motion and which means will not exert any appreciable pressure against the bobbin and will yet securely support the said bobbin prior to transference from the hopper to the shuttle.

Another object of the invention is to provide novel means for limiting the movement of the bobbin supporting member both to supporting position and to delivery position.

Another object of the invention is to so construct the said bobbin supporting memher and to so mount the same that in the event of accidental hanging of the said member in the shuttle in which the bobbin is placed, no damage will result to the component parts of the device embodying the invention, or to the shuttle.

In the accompanying drawings:

Figure 1 is a sectional view through the right hand end of a portion of a Northorp loom illustrating the usual filling changing motion, the view showing the device of the present invention in position supporting a bobbin which is in turn in position to be delivered to the shuttle to replace an empty bobbin;

Figure 2 is a sectional view taken substantially at right angles to the plane of Figure 1 and illustrating the device of the present invention in elevation and supporting a bobbin;

Figure 3 is a top plan view of the device;

Figure 4 is a sectional view taken substantially on the line 47-4: of Figure 3 looking in the direction indicated by the arrows.

As previously stated, the device embodying the present invention is especially designed for employment in connection with the filling changing motion of a Northorp loom although not limited to this specific application, and in the drawings there is illustrated so much of such a loom as is necessary to disclose the invention. In the drawings, the hopper of the loom comprises the usual inner and outer heads which are indicated respectively by the numerals 1 and 2 and between which the bobbins are supported, the bobbins being indicated by the numeral 3 and each having the usual head 4: which is seated within a recess 5 formed in the peripheral portion of the face of the head 1. The bobbin further includes the usual nose 6 which is engaged by a resilient retaining element 7 upon the head 2. The head 1 is provided with a series of the recesses 5 and the head 2 is provided with a series of the retaining elements 7, so that a considerable number of filled bobbins may be supported between these heads comprising the hopper of the motion. In order that the heels or butts 4L of the bobbins may be retained within the recesses 5, the head 1 is rotatably disposed within a circular frame having a projecting flange 8 which closes the open sides of the recesses 5, these recesses opening through the periphery of the head 1. However, this flange is interrupted at its lower side, as indicated by the numeral 9, so as to provide a throat 1O flanked by an inclined guide 11, it being understood that as usual the bobbins are to be successively discharged or delivered from the hopper through the throat 10 and guided by the guides 11 into the shuttle which is indicated by the numeral 12, the delivery of a filled bobbin into the shuttle serving to displace the empty or partially emptied bobbin which is at such time within the shuttle and discharge the same through the lower side of the shuttle and through a chute 13 into the usual receptacle 14 provided for receiving the discharged bobbins. The delivery of a filled bobbin through the throat 10 and into the shuttle 12 is eflected by the usual transferrer 15 having the usual transferrer fork connection 16, the end of the transferrer arm engaging the heel of the bobbin which is to be delivered, and the fork engaging the nose of such a bobbin. The transferrer is actuated in the usual manner through the coaction of the bunter 17 with the latch finger 18 which is connected with the transferrer 15, and the said transferrer carries the usual bow 19 for coaction with the ratchet 20 upon the head 1 of the hopper, so that after the transferrer 15 and its fork has been swung downwardly to deliver a filled bobbin into the shuttle 12, and the transferrer is restored to normal position through the medium of the usual spring 21, the hopper will be rotated a part of a revolution to bring into delivery position another filled bobbin.

The device embodying the invention comprises a pintle which is indicated by the numeral 22 and which is threaded at one end, as at 23, for the application thereto of a nut 24, the pintle being fitted at its threaded end through an opening 25 formed in a portion of the framework of the loom and being located in position slightly displaced rearwardly with relation to the cut away portion 9 of the flange 8 as clearly shown in Figure 1 of the drawings. The threaded end of the pintle is reduced so that a shoulder 26 is provided, and disposed between this shoulder and the said frame portion of the machine in which the reduced end of the pintle is mounted, is a plate 27 most clearly shown in Figures 3 and 4 of the drawings, the plate being securely held between the said shoulder 26 and the said loom frame. The plate 27 is provided with an inclined upper edge and at its upper corners is formed with stop lugs 28 and 29 which will presently be more specifically described. The pintle is provided at its other end with a polygonal head which is indicated by the numeral 30 to which a wrench may be applied while tightening the nut 24. A look washer 31 is preferably applied to the reduced threaded end of the pintle and is engaged by the nut 24.

The bobbin supporting member of the invention is indicated in general by the numeral 32 and the said member is preferably formed from an oblong rectangular blank of heavy sheet metal which blank is split longitudinally from one end for a suitable portion of its length, and the material at one side of the split is bent on the are of a circle to provide a substantially open eye indicated by the numeral 33, this eye freely pivotally embracing the shank of the pintle and, for a purpose to be presently explained, being formed with an opening 34. The material at the opposite side of the split in the blank is bent rearwardly to project rearwardly beyond the eye and constitutes a detent finger indicated by the numeral 35. The forward portion of the member constitutes an apr proximately fiat supporting tongue indicated by the numeral 36, and this tongue extends forwardly from the pintle and is preferably given a slight bend, as indicated by the numeral 37, the portion of the tongue beyond the bend extending, normally, in position to support the heel of the bobbin which is next to be delivered into the shuttle from the hopper of the loom filling motion, as most clearly shown in Figure 1 of the drawings, this position of the said supporting member being shown in full lines in the said figure. The member is normall and yieldably held in this position througi the medium of a coil spring 38 which is fitted onto the shank of the pintle and is provided with a laterally turned extremity 39 which engages in an opening 40 formed in the polygonal head 30 of the pintle, the other end of the spring being extended forwardly as at 41 and then turned laterally to provide a portion 42 which extends beneath the tongue 36 substantially at the bend 37 therein. This spring, as will be observed by reference to Figure 4 of the drawings, normally holds the tongue 36 swung upwardly with its upper side resting in engagement with the under side of the lug 28, and which is the normal position of the supporting member. When the filling motion operates to deliver the supported bobbin to the empty shuttle, the bobbin is forced downwardly thus swinging the tongue 36 in a corresponding direction against the tension of the spring 38 and about the pintle as a center. The heel of the bobbin will finally pass by the end of the supporting tongue 36 upon which it was initially supported, and the bobbin will be delivered into the shuttle. In the clownward swinging movement of the tongue 36, the finger 35 will be swung upwardly until it strikes against the under side of the lug 29, this engagement, however, being only momentary inasmuch as the operation of the deliverer 15 is relatively quick. The lugs 28 and 29 therefore serve as abutments to limit the movement of the supporting member about the pintle, in the first instance. against the tension of the spring 38 at the time the bobbin is delivered from the hopper to the shuttle, and, in the second instance, at the time the bobbin is delivered and the spring 38 acts to return the support to its normal position.

The present invention is designed particularly as an improvement over the bobbin support shown in Patent No. 1387943 issued to George R. Plott, August 16, 1921. In the patented structure no means was provided for limiting the movement of the bobbin supporting member in either direction and it was found that at times the free end of the swinging bobbin support would catch in the shuttle, and inasmuch as the support was provided at its inner end with a sleeve of considerable width and completely closed and embracing the pintle, the support would be broken off and the shuttle usually injured. In the present invention, however, means is provided for limiting the movement of the bobbin support both at the time of delivery of the bobbin from the hopper of the filling motion, and likewise at the time the support is returned to its normal position under the influence of the spring 38. \Vhen the bobbin is delivered and the support is swung downwardly, the finger 35 will strike the abutment lug 29 but as this finger is more or less resilient, the motion of the supporting tongue will not be suddenly arrested, and yet under normal operating conditions there will be no likelihood of the said tongue being caught in the shuttle as the shuttle is thrown back. However, should such an accident occur, no damage can result, in the present invention, for the reason that the pintle encircling eye 33 is formed in its upper side with the weakening opening 34 which renders the end portion of the open eye weaker than the portion nearer the juncture of the eye with the tongue 36, and consequently in the event of the tongue being caught by the shuttle, the eye will be merely expanded and snapped off from the pintle, the spring 38 permitting sufiicient longitudinal movement of the eye along the pintle to effect this result.

While in the drawings the open eye 33 is shown as provided with a weakening opening 34 in its upper side, it will be understood that this portion of the eye might be otherwise weakened if found advisable or desirable.

Having thus described the invention, what is claimed as new is:

1. A bobbin support comprising a pintle, a bobbin supporting tongue, at pintle eye at one end of the tongue pivotally embracing the pintle and describing an are less than a circle, whereby to provide for disengagement of the pintle eye from the pintle when the tongue is subjected to undue strain, and means yieldably holding the tongue in supporting position.

2. A bobbin support comprising a pintle, a bobbin supporting tongue provided at one end with an open eye embracing the pintle and supporting the tongue for pivotal movement about the pintle, the free end portion of the said eye being weakened, and means yieldably holding the tongue in supporting position.

3. A bobbin support comprising a pintle, a bobbin supporting tongue provided at one end with an open eye embracing the pintle and supporting the tongue for pivotal movement, the said eye near its free end having a portion removed whereby to weaken the said end of the eye, and means yieldably holding the tongue in supporting position.

4. A bobbin support comprising a pintle, a bobbin supporting tongue provided at one end with an open eye embracing the pintle and supporting the tongue for pivotal movement, means yieldably holding the tongue in supporting position, and means for positively limiting the swinging movement of the tongue in the direction of its supporting and its discharging positions.

5. A bobbin support comprising a pintle, a bobbin supporting tongue provided at one end with an open eye embracing the pintle and supporting the tongue for pivotal movement, means yieldably holding the tongue in supporting position, means limiting the swinging movement of the tongue in the direction of its supporting and its discharging positions, the said means comprising a member provided with spaced abutments one engageable by the tongue, and a finger upon the pivoted end of the tongue engageable with the other abutment.

6. A bobbin support comprising a pintle reduced and threaded at one end, the reduction in diameter of the pintle providing a shoulder near said end, a nut threaded onto the said reduced end of the pintle and constituting means for securing the pintle in an opening in a portion of the framework of a loom, a plate fitted onto the reduced end of the pintle and engaging against the said shoulder and adapted to be held between the shoulder and the said frame structure when the nut is tightened, a bobbin supporting tongue provided at one end with an open eye embracing the pintle and supporting the tongue for pivotal movement, the plate being provided with spaced abutment lugs at opposite end portions, one of said lugs being engageable by the tongue in the movement of the tongue toward its supporting position, a finger at the pivoted end of the tongue engageable with the other lug to limit the movement of the tongue toward discharging position, the said pintle having a head at its other end provided with an aperture, a spring having its coils surrounding the pintle and having one end turned to engage in said opening in the head and its other end turned to engage beneath the said tongue.

In testimony whereof I alfix my signature.

WILLIAM H. BAHAN, JR. 1. 3.] 

